<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>登录</title>
</head>
<body>
    <div align="center">
        <form action="/test" method="post">
            用户名:<input type="text" name="username" required><br>
            密码:<input type="password" name="pwd" required><br>
            <input type="submit" value="登录">
        </form>
    </div>
</body>
</html>